/*
 * Copyright 2020 Google Inc. All Rights Reserved.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import {BufferedLog} from '../../lib/BufferedLog';
import {MockLog} from '../../lib/mock/MockLog';

describe('buffered log', () => {
  it('Prints nothing before flush', () => {
    const mockLog = new MockLog();
    const bufferedLog = new BufferedLog(mockLog);

    bufferedLog.debug('1');
    bufferedLog.info('2');
    bufferedLog.warn('3');
    bufferedLog.error('4');

    expect(mockLog.getReceivedData()).toEqual([]);
  });

  it('Prints logs after flush', () => {
    const mockLog = new MockLog();
    const bufferedLog = new BufferedLog(mockLog);

    bufferedLog.debug('1');
    bufferedLog.info('2');
    bufferedLog.warn('3');
    bufferedLog.error('4');

    bufferedLog.flush();

    expect(mockLog.getReceivedData()).toEqual(['1', '2', '3', '4']);
  });
});
